Methods and apparatus to selectively provide cached and presently compiled applications

• US 10,129,359 B2
• Filed: 01/20/2016
• Issued: 11/13/2018
• Est. Priority Date: 01/20/2016
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google LLC (Alphabet Inc.)
• Inventors: Ekbote, Chirantan, Cheng, Ben
• Primary Examiner(s): Gracia, Gary S
• Application Number:
  US15/001,964
• Publication Number:
  US 20170208150A1
• Time in Patent Office: 1,028 Days
• Field of Search: 717140, 717148, 717136, 717138, 717139, 717145, 717146, 717147, 717149, 717151, 717153, 713168
• CPC Class Codes: G06F 21/12 Protecting executable software
• CPC Class Codes: G06F 21/57 Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
• CPC Class Codes: G06F 8/41 Compilation
• CPC Class Codes: G06F 8/60 Software deployment
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 9/0643 Hash functions, e.g. MD5, SHA, HMAC or f9 MAC

Abstract

Example methods, apparatus and articles of manufacture to selectively provide cached and presently compiled applications are disclosed. An example method includes receiving a request for an application from a device, querying a cache of pre-compiled applications based on the request for the application, if a pre-compiled version of the requested application is found in the cache, sending the pre-compiled requested application to the device; and if a pre-compiled version of the requested application is not found in the cache, thereupon compiling the requested application, and sending the compiled requested application to the device.

Claims

1. A method comprising:

receiving, by a server, a request for an application from a device that is separate from the server;

determining configuration information of the device;

querying a cache of pre-compiled applications based on the configuration information for a pre-compiled version of the application that is applicable to the device;

if a pre-compiled version of the requested application is found in the cache, sending to the device an encrypted file that includes a combination of the pre-compiled version of the requested application and a hash of the pre-compiled version of the requested application; and

if a pre-compiled version of the requested application is not found in the cache;

compiling the requested application;

computing a hash of the compiled requested application;

encrypting a combination of the compiled requested application and the hash using a private encryption secret to form an encrypted file; and

sending the encrypted file to the device.

2. The method of claim 1, further comprising determining whether to retain the compiled requested application in the cache based on at least one of an available storage space in a computer-readable storage medium, a number of requests for the application, a system library version, an operating system version, a device model, and/or a processor architecture.

3. The method of claim 1, further comprising determining whether to retain the compiled requested application in the cache to increase a likelihood that future requests for applications will result in pre-compiled versions being found in the cache.

4. The method of claim 1, further comprising:

receiving another request for the application from another device;

querying the cache based on the another request for the application; and

determining whether to send a pre-compiled version of the application or another compiled version of the requested application to the other device separate from whether a pre-compiled version of the application is sent to the device.

5. The method of claim 4, wherein the device and the other device differ in at least one of a system library, an operating system, a manufacturer, a device model, and/or a processor architecture, and wherein the difference is associated with different pre-compiled versions of the requested application in the cache.

6. The method of claim 1, wherein the querying of the cache is based in part on a configuration parameter associated with the device.

7. The method of claim 6, wherein pre-compiled versions of the requested application are stored in the cache for respective values of the configuration parameter.

8. The method of claim 6, wherein the parameter represents at least one of a system library, an operating system, a manufacturer, a device model, and/or a processor architecture.

9. The method of claim 1, further comprising:

computing a hash of the pre-compiled version of the requested application; and

encrypting a combination of the version of the pre-compiled requested application and the hash using a private encryption secret to form the encrypted file.

10. An apparatus comprising:

an interface device configured to receive a request for an application from a device that is separate from the apparatus and determine configuration information of the device;

a cache storing a plurality of pre-compiled applications;

a querier device configured to query the cache based on the configuration information for a pre-compiled version of the application that is applicable to the device;

a compiler; and

an application manager device configured to;

if a pre-compiled version of the requested application is found in the cache, send to the device, via the interface device, an encrypted file that includes a combination of the pre-compiled version of the requested application and a hash of the pre-compiled version of the requested application; and

responsive to not finding a pre-compiled version of the requested application in the cache;

direct the compiler to compile the requested application;

compute a hash of the compiled requested application;

encrypt a combination of the compiled requested application and the hash using a private encryption secret to form an encrypted file; and

send the encrypted file to the device via the interface device.

11. The apparatus of claim 10, further comprising:

a first computer-readable storage medium storing a plurality of system libraries; and

a second computer-readable storage medium storing a plurality of uncompiled applications;

wherein the compiler;

obtains a system library from the first storage medium based on the configuration information;

obtains an uncompiled version of the requested application from the second storage medium; and

compiles the uncompiled version using the system library to form the compiled requested application.

12. The apparatus of claim 10, further comprising a security module that:

computes a hash of the compiled requested application; and

encrypts a combination of the compiled requested application and the hash using a private encryption secret to form encrypted data,

wherein the sending the compiled requested application comprises sending the encrypted data.

13. The apparatus of claim 12, wherein the pre-compiled version of the requested application is stored in the cache as the encrypted file.

14. The apparatus of claim 10, wherein:

the querier device queries the cache based on a another request for the application received from another device via the interface; and

the application manager device determines whether to send a pre-compiled version of the application or another compiled version of the requested application to the other device separate from whether a pre-compiled version of the application is sent to the device.

15. A computer-readable medium storing machine-readable instructions that, when executed, cause a machine to at least:

receive a request for an application from a device that is separate from the machine;

determine configuration information of the device;

query a cache of pre-compiled applications based on the configuration information for a pre-compiled version of the application that is applicable to the device;

determine whether a pre-compiled version of the requested application applicable to the device is found in the cache;

if found in the cache, send to the device an encrypted file that includes a combination of the pre-compiled version of the requested application and a hash of the pre-compiled version of the requested application; and

if an applicable pre-compiled requested application is not found in the cache;

compile the requested application to form an applicable compiled requested application;

compute a hash of the compiled requested application;

encrypt a combination of the compiled requested application and the hash using a private encryption secret to form an encrypted file; and

send the encrypted file to the device.

16. The computer-readable medium of claim 15, wherein the machine-readable instructions, when executed, cause the machine to additionally determine whether a pre-compiled application is applicable based on at least one of a system library, an operating system, a manufacturer, a device model, and/or a processor architecture.

17. The computer-readable medium of claim 15, wherein the machine-readable instructions, when executed, cause the machine to additionally:

receive another request for the application from another device;

query the cache based on the another request for the application; and

determine whether to send a pre-compiled version of the application or another compiled version of the requested application to the other device separate from whether a pre-compiled version of the application is sent to the device.